Oddly shaped 3/4" Pink and Purple Sioux Quartzite Tumbling Media 3.5+ Pounds Rock Tumbling rough.  Great for tumbling with agates, jasper's, quartz and other quartzites. It has a mohs hardness of 7 and it polishes up into nice looking pieces for aquariums, gardens and more as seen in the picture. Shipped fast with USPS priority shipping.